Snippet from qemu:
static void raw_parse_flags(int bdrv_flags, int *open_flags)
{
assert(open_flags != NULL);
*open_flags |= O_BINARY;
*open_flags &= ~O_ACCMODE;
if (bdrv_flags & BDRV_O_RDWR) {
*open_flags |= O_RDWR;
} else {
*open_flags |= O_RDONLY;
}
/* Use O_DSYNC for write-through caching, no flags for write-back caching,
* and O_DIRECT for no caching. */
if ((bdrv_flags & BDRV_O_NOCACHE)) {
*open_flags |= O_DIRECT;
}
}
no-cache == use O_DIRECT.
** Project changed: nova => charm-test-infra
** Changed in: charm-test-infra
Importance: Undecided => Low
** Changed in: charm-test-infra
Status: Confirmed => Triaged
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Engineering Team, which is subscribed to OpenStack Compute (nova).
https://bugs.launchpad.net/bugs/1710994
Title:
Openstack Pike + LXD with ZFS - cannot convert image to raw
Status in OpenStack Charm Test Infra:
Triaged
Bug description:
Deploying Pike on arm64 - during instance creation nova reports the
following error:
fault | {"message": "Build of instance
3460a1bc-72ac-4d43-a232-d150161c2447 aborted: Image
b81b08c8-2487-4fea-b39a-d9b07b75b2f0 is unacceptable: Unable to convert image
to raw: Image
/var/lib/nova/instances/_base/43dbc7beed2459ae424c6b889caf7854f26321e5.part is
unacceptable: ", "code": 500, "details": " File
\"/usr/lib/python2.7/dist-packages/nova/compute/manager.py\", line 1785, in
_do_build_and_run_instance |
| | filter_properties)
|
| | File
\"/usr/lib/python2.7/dist-packages/nova/compute/manager.py\", line 2007, in
_build_and_run_instance
|
Further investigation of nova-compute logs reveals:
Unable to convert image to raw: Unexpected error while running command.
Command: qemu-img convert -t none -O raw -f qcow2
/var/lib/nova/instances/_base/f8488b6e96eb7e752a6d2aa046a8de693c06a5fd.part
/var/lib/nova/instances/_base/f8488b6e96eb7e752a6d2aa046a8de693c06a5fd.converted
Exit code: 1
Stdout: u''
Stderr: u"qemu-img: file system may not support O_DIRECT\nqemu-img: Could not
open
'/var/lib/nova/instances/_base/f8488b6e96eb7e752a6d2aa046a8de693c06a5fd.converted':
Could not open
'/var/lib/nova/instances/_base/f8488b6e96eb7e752a6d2aa046a8de693c06a5fd.converted':
Invalid argument\n"
Full log:
https://pastebin.canonical.com/195965/
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